US3390326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particle counting device including fluid conducting means breaking up particle clusters
Assignee: Toa Corp
•
Filing: 1967-04-11
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Granted: 1968-06-25
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Expires: 1987-04-11
Abstract
No abstract record available.
Inventors
- 👤 Imadate Hiroshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:52
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/10; G01N15/1031; G01N15/12; G01N15/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123541A
Cited
US2071607A
Cited
US2369577A
Cited
US2779232A
Cited
US2807416A
Cited
US2985830A
Cited
US3238452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |